Nested playlist

wled00/data/index.js

@@ -409,7 +409,9 @@ function pName(i)
 
 function isPlaylist(i)
 {
-	return pJson[i].playlist && pJson[i].playlist.ps;
+	if (isNumeric(i)) return pJson[i].playlist && pJson[i].playlist.ps;
+	if (isObj(i)) return i.playlist && i.playlist.ps;
+	return false;
 }
 
 function papiVal(i)
@@ -1905,15 +1907,16 @@ function resetUtil(off=false)
 	if (lSeg>2) d.querySelectorAll("#Segments .pop").forEach((e)=>{e.classList.remove("hide");});
 }
 
-function makePlSel(el, incPl=false)
+function makePlSel(p, el)
 {
 	var plSelContent = "";
 	delete pJson["0"];	// remove filler preset
 	Object.entries(pJson).sort(cmpP).forEach((a)=>{
 		var n = a[1].n ? a[1].n : "Preset " + a[0];
+		if (isPlaylist(a[1])) n += ' ▶'; // mark playlist
 		if (cfg.comp.idsort) n = a[0] + ' ' + n;
-		if (!(!incPl && a[1].playlist && a[1].playlist.ps)) // skip playlists, sub-playlists not yet supported
+		// skip endless playlists and itself
-			plSelContent += `<option value="${a[0]}" ${a[0]==el?"selected":""}>${n}</option>`;
+		if (!isPlaylist(a[1]) || (a[1].playlist.repeat > 0 && a[0]!=p)) plSelContent += `<option value="${a[0]}" ${a[0]==el?"selected":""}>${n}</option>`;
 	});
 	return plSelContent;
 }
@@ -1938,21 +1941,23 @@ function refreshPlE(p)
 	});
 }
 
-// p: preset ID, i: ps index
+// p: preset ID, i: playlist item index
 function addPl(p,i)
 {
-	plJson[p].ps.splice(i+1,0,0);
+	const pl = plJson[p];
-	plJson[p].dur.splice(i+1,0,plJson[p].dur[i]);
+	pl.ps.splice(i+1,0,1);
-	plJson[p].transition.splice(i+1,0,plJson[p].transition[i]);
+	pl.dur.splice(i+1,0,pl.dur[i]);
+	pl.transition.splice(i+1,0,pl.transition[i]);
 	refreshPlE(p);
 }
 
 function delPl(p,i)
 {
-	if (plJson[p].ps.length < 2) return;
+	const pl = plJson[p];
-	plJson[p].ps.splice(i,1);
+	if (pl.ps.length < 2) return;
-	plJson[p].dur.splice(i,1);
+	pl.ps.splice(i,1);
-	plJson[p].transition.splice(i,1);
+	pl.dur.splice(i,1);
+	pl.transition.splice(i,1);
 	refreshPlE(p);
 }
 
@@ -2017,7 +2022,7 @@ function makeP(i,pl)
 <div class="sel-p"><select class="sel-ple" id="pl${i}selEnd" onchange="plR(${i})" data-val=${plJson[i].end?plJson[i].end:0}>
 <option value="0">None</option>
 <option value="255" ${plJson[i].end && plJson[i].end==255?"selected":""}>Restore preset</option>
-${makePlSel(plJson[i].end?plJson[i].end:0, true)}
+${makePlSel(i, plJson[i].end?plJson[i].end:0)}
 </select></div></div>
 </div>
 <div class="c"><button class="btn btn-p" onclick="testPl(${i}, this)"><i class='icons btn-icon'>&#xe139;</i>Test</button></div>`;
@@ -2096,7 +2101,7 @@ function makePlEntry(p,i)
 	<tr>
 		<td width="80%" colspan=2>
 			<div class="sel-p"><select class="sel-pl" onchange="plePs(${p},${i},this)" data-val="${plJson[p].ps[i]}" data-index="${i}">
-			${makePlSel(plJson[p].ps[i])}
+			${makePlSel(p, plJson[p].ps[i])}
 			</select></div>
 		</td>
 		<td class="c"><button class="btn btn-pl-add" onclick="addPl(${p},${i})"><i class="icons btn-icon">&#xe18a;</i></button></td>

wled00/fcn_declare.h

@@ -325,6 +325,7 @@ void serializePlaylist(JsonObject obj);
 
 //presets.cpp
 const char *getPresetsFileName(bool persistent = true);
+bool presetNeedsSaving();
 void initPresetsFile();
 void handlePresets();
 bool applyPreset(byte index, byte callMode = CALL_MODE_DIRECT_CHANGE);

wled00/led.cpp

@@ -112,10 +112,11 @@ void stateUpdated(byte callMode) {
     }
   }
 
+  unsigned long now = millis();
   if (callMode != CALL_MODE_NO_NOTIFY && nightlightActive && (nightlightMode == NL_MODE_FADE || nightlightMode == NL_MODE_COLORFADE)) {
     briNlT = bri;
-    nightlightDelayMs -= (millis() - nightlightStartTime);
+    nightlightDelayMs -= (now - nightlightStartTime);
-    nightlightStartTime = millis();
+    nightlightStartTime = now;
   }
   if (briT == 0) {
     if (callMode != CALL_MODE_NOTIFICATION) strip.resetTimebase(); //effect start from beginning
@@ -141,7 +142,7 @@ void stateUpdated(byte callMode) {
   } else
     strip.setTransitionMode(true); // force all segments to transition mode
   transitionActive = true;
-  transitionStartTime = millis();
+  transitionStartTime = now;
 }
 
 

wled00/playlist.cpp

@@ -10,19 +10,19 @@ typedef struct PlaylistEntry {
   uint16_t tr;    //Duration of the transition TO this entry (in tenths of seconds)
 } ple;
 
-byte           playlistRepeat = 1;        //how many times to repeat the playlist (0 = infinitely)
+static byte           playlistRepeat = 1;        //how many times to repeat the playlist (0 = infinitely)
-byte           playlistEndPreset = 0;     //what preset to apply after playlist end (0 = stay on last preset)
+static byte           playlistEndPreset = 0;     //what preset to apply after playlist end (0 = stay on last preset)
-byte           playlistOptions = 0;       //bit 0: shuffle playlist after each iteration. bits 1-7 TBD
+static byte           playlistOptions = 0;       //bit 0: shuffle playlist after each iteration. bits 1-7 TBD
 
-PlaylistEntry *playlistEntries = nullptr;
+static PlaylistEntry *playlistEntries = nullptr;
-byte           playlistLen;               //number of playlist entries
+static byte           playlistLen;               //number of playlist entries
-int8_t         playlistIndex = -1;
+static int8_t         playlistIndex = -1;
-uint16_t       playlistEntryDur = 0;      //duration of the current entry in tenths of seconds
+static uint16_t       playlistEntryDur = 0;      //duration of the current entry in tenths of seconds
 
 //values we need to keep about the parent playlist while inside sub-playlist
-//int8_t         parentPlaylistIndex = -1;
+static int16_t        parentPlaylistIndex = -1;
-//byte           parentPlaylistRepeat = 0;
+static byte           parentPlaylistRepeat = 0;
-//byte           parentPlaylistPresetId = 0; //for re-loading
+static byte           parentPlaylistPresetId = 0; //for re-loading
 
 
 void shufflePlaylist() {
@@ -54,6 +54,12 @@ void unloadPlaylist() {
 
 
 int16_t loadPlaylist(JsonObject playlistObj, byte presetId) {
+  if (currentPlaylist > 0 && parentPlaylistPresetId > 0) return; // we are already in nested playlist, do nothing
+  if (currentPlaylist > 0) {
+    parentPlaylistIndex = playlistIndex;
+    parentPlaylistRepeat = playlistRepeat;
+    parentPlaylistPresetId = currentPlaylist;
+  }
   unloadPlaylist();
 
   JsonArray presets = playlistObj["ps"];
@@ -117,6 +123,19 @@ int16_t loadPlaylist(JsonObject playlistObj, byte presetId) {
   shuffle = shuffle || playlistObj["r"];
   if (shuffle) playlistOptions |= PL_OPTION_SHUFFLE;
 
+  if (parentPlaylistPresetId == 0 && parentPlaylistIndex > -1) {
+    // we are re-loading playlist when returning from nested playlist
+    playlistIndex = parentPlaylistIndex;
+    playlistRepeat = parentPlaylistRepeat;
+    parentPlaylistIndex = -1;
+    parentPlaylistRepeat = 0;
+  } else if (rep == 0) {
+    // endless playlist will never return to parent so erase parent information if it was called from it
+    parentPlaylistPresetId = 0;
+    parentPlaylistIndex = -1;
+    parentPlaylistRepeat = 0;
+  }
+
   currentPlaylist = presetId;
   DEBUG_PRINTLN(F("Playlist loaded."));
   return currentPlaylist;
@@ -127,7 +146,7 @@ void handlePlaylist() {
   static unsigned long presetCycledTime = 0;
   if (currentPlaylist < 0 || playlistEntries == nullptr) return;
 
-if (millis() - presetCycledTime > (100 * playlistEntryDur) || doAdvancePlaylist) {
+  if (millis() - presetCycledTime > (100 * playlistEntryDur) || doAdvancePlaylist) {
     presetCycledTime = millis();
     if (bri == 0 || nightlightActive) return;
 
@@ -137,7 +156,10 @@ if (millis() - presetCycledTime > (100 * playlistEntryDur) || doAdvancePlaylist)
     if (!playlistIndex) {
       if (playlistRepeat == 1) { //stop if all repetitions are done
         unloadPlaylist();
-        if (playlistEndPreset) applyPresetFromPlaylist(playlistEndPreset);
+        if (parentPlaylistPresetId > 0) {
+          applyPresetFromPlaylist(parentPlaylistPresetId); // reload previous playlist (unfortunately asynchronous)
+          parentPlaylistPresetId = 0; // reset previous playlist but do not reset Index or Repeat (they will be loaded & reset in loadPlaylist())
+        } else if (playlistEndPreset) applyPresetFromPlaylist(playlistEndPreset);
         return;
       }
       if (playlistRepeat > 1) playlistRepeat--; // decrease repeat count on each index reset if not an endless playlist

wled00/presets.cpp

@@ -22,6 +22,10 @@ const char *getPresetsFileName(bool persistent) {
   return persistent ? presets_json : tmp_json;
 }
 
+bool presetNeedsSaving() {
+  return presetToSave;
+}
+
 static void doSaveState() {
   bool persist = (presetToSave < 251);
 
@@ -269,7 +273,7 @@ void savePreset(byte index, const char* pname, JsonObject sObj)
       quickLoad = nullptr;
     } else {
       // store playlist
-      // WARNING: playlist will be loaded in json.cpp after this call and will have repeat counter increased by 1
+      // WARNING: playlist will be loaded in json.cpp after this call and will have repeat counter increased by 1 it will also be randomised if selected
       includeBri   = true; // !sObj["on"].isNull();
       playlistSave = true;
     }

wled00/wled.cpp

@@ -109,7 +109,6 @@ void WLED::loop()
     if (WLED_CONNECTED && aOtaEnabled && !otaLock && correctPIN) ArduinoOTA.handle();
     #endif
     handleNightlight();
-    handlePlaylist();
     yield();
 
     #ifndef WLED_DISABLE_HUESYNC
@@ -117,6 +116,10 @@ void WLED::loop()
     yield();
     #endif
 
+    if (!presetNeedsSaving()) {
+      handlePlaylist();
+      yield();
+    }
     handlePresets();
     yield();
 
@@ -553,10 +556,10 @@ void WLED::beginStrip()
     strip.fill(BLACK);
     strip.show();
   }
+  colorUpdated(CALL_MODE_INIT); // will not send notification but will initiate transition
   if (bootPreset > 0) {
     applyPreset(bootPreset, CALL_MODE_INIT);
   }
-  colorUpdated(CALL_MODE_INIT); // will not send notification
 
   // init relay pin
   if (rlyPin >= 0) {